Hilpertia velenovskyi

(Schiffner) R. H. Zander

Phylologia 65: 429. 1989,.

Basionym: Tortula velenovskyi Schiffner Nova Acta Acad. Caes. Leop.-Carol. German. Nat. Cur. 58: 480, plate 17. 1893
Synonyms: Hilpertia scotteri (R. H. Zander & Steere) R. H. Zander Tortula scotteri R. H. Zander & Steere
Treatment appears in FNA Volume 27. Treatment on page 632. Mentioned on page 604.

Stems branching irregularly; rhizoids rare; leaves broadly toothed at or near the base of the awn; basal-cells ca. 16–18 µm wide, 2–3: 1. Specialized asexual reproduction by brood bodies of (1–) 3–4 cells, mostly 30–50 µm. Perichaetial leaves to 1.7 mm. Seta 0.35–0.40 cm, twisted counterclockwise distally, clockwise proximally. Theca operculum 0.4–1 mm, cells twisted 1/2 times counterclockwise; peristome teeth 300–700 µm, densely branching-spiculose. Calyptra ca. 2.8 mm, smooth. Spores indistinctly papillose, light-brown.


Phenology: Capsules mature summer.
Habitat: Calcareous silt and shrub steppe

Distribution

V27 931-distribution-map.gif

B.C., N.W.T., Nunavut, c Europe, Asia (China)

Discussion

In the flora area, Hilpertia velenovskyi is a rare but distinctive species known only from Northwest Territories, base of a hill on the north bank of the South Nahanni River, 60°33’30”N, 125°23’W, from British Columbia, E side of Fraser R. at Big Bar, 51°15’N, 122°W, T. McIntosh 7688, May 13, 1984 (UBC), and from Nunavut, Ellesmere Island, Tanquary Fiord marine forland, 1.5 mi. SW of base camp, 81°23’N, 76°59’W, G. S. Mogensen 90-134, July 19, 1990 (C). The spiraled leaf margin of slightly enlarged, highly photosynthetic cells is similar to that of Pseudocrossidium replicatum, but the broad leaf shape and costal anatomy place H. velenovskii in the Pottioideae. I agree with the appraisal of B. C. Tan and J. Zhao (1997) that H. scotteri is a synonym. As with those in Stegonia latifolia, the cells of the leaf apex are rhomboid to fusiform and epapillose.

Selected References

None.

Lower Taxa

None.

"um" is not declared as a valid unit of measurement for this property."um" is not declared as a valid unit of measurement for this property.

... more about "Hilpertia velenovskyi"
elongate +  and quadrate +
concave +  and flat to quite +
of 1-2 rows +  and differentiated +
long-excurrent +  and short-excurrent +
Richard H. Zander +
(Schiffner) R. H. Zander +
rounded +
rectangular +
papillose +  and smooth +
usually slightly wider +
usually ovate;oblong +
not differentiated +
Tortula velenovskyi +
obovoid +
cucullate +
2.8 cm28 mm <br />0.028 m <br /> (?) +
stegocarpous +
monoicous +, dioicous +  and sexual +
flat to bulging +
thin;thickened +
specialized +
3 (?) +  and 4 (?) +
quadrate +, rhomboid +  and fusiform +
smaller +  and enlarged +
1/2 times counterclockwise +
tomentose +  and bare +
broader +
hexagonal;rhomboid;hexagonal +
B.C. +, N.W.T. +, Nunavut +, c Europe +  and Asia (China) +
differentiated +
multicellular +
Calcareous silt and shrub steppe +
yellow +  and orange-red or red +
spiraled +  and crowded +
0.1 cm1 mm <br />0.001 m <br /> (0.14 cm1.4 mm <br />0.0014 m <br />) +
ovate;circular +
toothed +
reduced +
dentate +  and entire +
differentiated +
broadly short-conic;long-conic +
photosynthetic +
compound +, simple +, hollow +  and solid +
1 +  and 4 +
lateral +  and terminal +
lateral +  and terminal +
branching-spiculose +
red +, orange +  and yellow +
consisting of 16 mostly 2 times cleft spiculose striate or papillose lanceolate teeth , , , , +  and rudimentary +
Capsules mature summer. +
straight +
elongate +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
2 +  and 1 +
light-brown +
rounded-triangular +  and rounded-pentagonal +
0 cm0 mm <br />0 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Hilpertia scotteri +  and Tortula scotteri +
Hilpertia velenovskyi +
Hilpertia +
species +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
ventricose +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
yellow distally and red +, orange +, red +  and yellow +
autoicous +, paroicous +, synoicous +, polyoicous +  and sexual +
stemless +  and perigoniate +
light-brown;greenish brown +
occasionally smaller than the perichaetiate +